Walter Neff is a smooth talking insurance salesman who meets the very attractive Phyllis Dietrichson when he calls to renew her husband's automobile policy. The couple are immediately drawn to each other and have an affair. They scheme together to murder Phyllis' husband for life insurance money with a double indemnity clause. Unfortunately, all does not go as planned. Barton Keyes is the wily insurance investigator who must sort things out

Walter Neff is a smooth talking insurance salesman who meets the very attractive Phyllis Dietrichson when he calls to renew her husband's automobile policy. The couple are immediately drawn to each other and have an affair. They scheme together to murder Phyllis' husband for life insurance money with a double indemnity clause. Unfortunately, all does not go as planned. Barton Keyes is the wily insurance investigator who must sort things out